| Site | Plutonium kg (1) |
HEU kg 235U (2) |
LEU tU (4) |
Natural U tU (3) |
Depleted U tU (3) |
|---|---|---|---|---|---|
| Dounreay (Dounreay Site Restoration Ltd) |
+0.008 | +0.942 | <-0.001 | <+0.001 | +0.049 |
| Harwell (Research Sites Restoration Ltd) |
+0.032 | NIL | NIL | NIL | NIL |
| Winfrith (Research Sites Restoration Ltd) |
NIL | NIL | NIL | NIL | NIL |
| Sellafield (Sellafield Ltd) (4) |
-2.058 | -0.018 | +2.116 | <-0.001 | +1.443 |
| Springfields (Springfields Fuels Ltd) |
NIL | NIL | -1.652 | +0.347 | -0.074 |
| Capenhurst (5) (URENCO UK Ltd) |
N/A | NIL | <------------- -0.960----------> | ||
+ apparent increase
- apparent decrease
- the figures for plutonium are the total amount of all plutonium isotopes.
- the figures for highly enriched uranium (HEU) are for the uranium235 content of uranium enriched to above 20% of that isotope.
- low enriched uranium (LEU), natural uranium and depleted uranium cannot be used to make explosive devices. The published figures include these grades for the sake of completeness.
- effective from 2017/18, includes Windscale ID figures
- the figure for Urenco Capenhurst is a consolidated figure for Urenco UK Ltd, Urenco Nuclear Stewardship Ltd and URENCO ChemPlants Limited